[PATCH v1 2/2] arm64: tegra: Add PCIe wake GPIO for Jetson Orin NX/Nano
From: Manikanta Maddireddy <hidden>
Date: 2026-09-07 11:32:24
Also in:
linux-tegra, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
The C8 PCIe controller on the P3768 carrier has WAKE# wired to main GPIO L.2. Describe the signal on the root port so PCIe devices can use it as a wake source, enabling wake-on-LAN support. Signed-off-by: Manikanta Maddireddy <redacted> --- .../boot/dts/nvidia/tegra234-p3768-0000+p3767.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767.dtsi b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767.dtsi
index 41821354bbda..2af32613b16c 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3768-0000+p3767.dtsi@@ -163,6 +163,16 @@ pcie@140a0000 { vddio-pex-ctl-supply = <&vdd_1v8_ao>; vpcie3v3-supply = <&vdd_3v3_pcie>; + + pci@0,0 { + reg = <0x0000 0 0 0 0>; + device_type = "pci"; + #address-cells = <3>; + #size-cells = <2>; + ranges; + + wake-gpios = <&gpio TEGRA234_MAIN_GPIO(L, 2) GPIO_ACTIVE_LOW>; + }; }; /* C1 - M.2 Key-E */
--
2.34.1